CVE-2021-47325 — iommu/arm-smmu: Fix arm_smmu_device refcount leak in address translation
In the Linux kernel, the following vulnerability has been resolved: iommu/arm-smmu: Fix arm_smmu_device refcount leak in address translation The reference counting issue happe…
Published: 2024-05-21 · CVSS: Unscored
In the Linux kernel, the following vulnerability has been resolved: iommu/arm-smmu: Fix arm_smmu_device refcount leak in address translation The reference counting issue happens in several exception handling paths of arm_smmu_iova_to_phys_hard(). When those error scenarios occur, the function forgets to decrease the refcount of "smmu" increased by arm_smmu_rpm_get(), causing a refcount leak. Fix this issue by jumping to "out" label when those error scenarios occur.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7